Pith Number

pith:QRSCADH7

pith:2005:QRSCADH7CY6GLVKOL6P3SVPYQD

not attested not anchored not stored refs pending

Matrices of Forests and the Analysis of Digraphs

Pavel Chebotarev, Rafig Agaev

arxiv:math/0508171 v2 · 2005-08-09 · math.CO · cs.CV · cs.NI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRSCADH7CY6GLVKOL6P3SVPYQD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T14:50:36.486285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8464200cff163c65d54e5f9fb955f880f161946b888418af5c8ecf2017187bb0

Aliases

arxiv: math/0508171 · arxiv_version: math/0508171v2 · doi: 10.48550/arxiv.math/0508171 · pith_short_12: QRSCADH7CY6G · pith_short_16: QRSCADH7CY6GLVKO · pith_short_8: QRSCADH7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QRSCADH7CY6GLVKOL6P3SVPYQD \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8464200cff163c65d54e5f9fb955f880f161946b888418af5c8ecf2017187bb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "681da3c3219ab669447596a414e9860accc9731c66ed6fd436aab0aa9ea64683",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.NI"
    ],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2005-08-09T20:11:27Z",
    "title_canon_sha256": "8b31feab3c5845ed583d212763c1e8d1d81f7c40d4182133a1fc706d7166f552"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0508171",
    "kind": "arxiv",
    "version": 2
  }
}